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'Serenity' marks the worst opening of Anne Hathaway's career and one of the worst in recent times for Matthew McConaughey; Oscar contender 'Green Book' gets a boost.

M. Night Shyamalan's Glass is easily staying atop the domestic box office in its second weekend with an estimated $16 million-$17 million, while new offerings The Kid Who Would Be King and Serenity are bombing.

Overseas, the big action is Once Upon a Deadpool's China launch. The superhero pic opened to a projected $8.5 million on Friday for a weekend debut in the $25 million range.

In North America, holdover The Upside continues to hold well in its third outing with an expected weekend haul of $11 million-plus.

The Kid Who Would Be King — the latest twist on the Arthurian legend to falter — is in a close race for No. 3 with Aquaman. Both films grossed $1.7 million on Friday for a projected weekend gross of $6.5 million-$7 million.

Directed by Joe Cornish, The Kid Who Would Be King is a big disappointment for 20th Century Fox and Working Title Films, which spent just under $60 million to produce the family-friendly film. Kid, scoring strong reviews and a B+ CinemaScore, stars Louis Ashbourne Serkis (son of Andy Serkis) as a young boy who finds King Arthur's legendary sword, Excalibur. Rebecca Ferguson and Patrick Stewart also star.

Spider-Man: Into the Spider-Verse is expected to round out the top 5 with a protected $5.5 million weekend.

Peter Farrelly's Green Book won't be far behind. The dramedy is making a major expansion after scoring a best picture Oscar nomination earlier this week, among other top noms.

Green Book, now playing in 2,426 locations, compared to 912 cinemas last weekend, is on course to gross $5 million for the weekend.

Opening in sixth place, Serenity, an indie thriller starring Matthew McConaughey and Anne Hathaway, is looking at a debut in the $4.5 million-$4.8 million range. That's the worst opening of Hathaway's career, and one of the worst in recent memory for McConaughey.

The neo-noir thriller, directed by Steven Knight, drew poor reviews and a terrible D+ CinemaScore from audiences. The Aviron release centers on a fishing boat captain (McConaughey) who is asked by his ex-wife (Hathaway) to murder her new husband. Diane Lane, Jason Clarke, Djimon Hounsou and Jeremy Strong co-star.